hardness
Hardness or penetration, is to choose appropriate grease must consider a measurable properties. The hardness of the grease to code to decide, 0 the soft, then with the no. 1, no. 2 and add increased to 6. 6, the hardness of the same as the bars of soap. The mud in the garden to shovel into the soft, hard to shovel into the hard, the hardness of the grease, too, it is based on cone meter falling from a certain height throughout the depth of grease to grading. Printing machinery is a must, in accordance with the printer manufacturers requirements to join the appropriate hardness of grease, otherwise the parts may cause insufficient lubrication or resistance increase.
Pressure to send
The another characteristic of the grease is pressurized conveying ease; Two room temperature in the central system for fat grease, also easy to compression in low temperature environment down to send sexual often are quite different. Its difference from grease contained in the lubricating oil and different kinds and proportion of soap. Part of the printing and binding equipment for fat is the central system for lubrication of mechanical components, thus selecting good delivery grease is very important.
Flow drop point
Due to the grease to contain different soap base, different grease will with different melt temperature. Flow is by semi-solid grease into liquid drop point of temperature; Most of the calcium soap grease melt in 160-160 ° F, sodium soap grease 350-350 ° F, lithium soap grease is 350-400 ° F, so high temperature when using sodium lithium soap or soap. Nowadays, most of the printing speed is quite high, because of bearing high revolutions in the play, bearing temperature also increases accordingly, choose high flow dropping point of lubricating grease, can make a motorized high-speed bearing such as "carbon pump" bearings have better protection.
Water resistance
Whether contact with water or not, some still need to perform the grease lubrication, so its water resistance is an important character. Lithium calcium soap and soap grease does not dissolve in water, the sodium soap fat soluble in water, so cannot be used as lubricant may come into contact with water. Printing process is mixed water is required, so some bearing is must to use the water resistance of grease protection, otherwise, the service life of the bearing is greatly reduced.
The stability of
After some grease in the bearing can still maintain its original hardness, stability is very high; that is to say, This grease can work in antifriction bearings after a period of time will soften, without good seal will be out in the bearing. Printing process, the powder is continuous and the coverage is very large. If use the grease of poor stability, caused by pollutants more easily into bearings and components, printer caused great damage.
Traditionally, the design and production of the grease, just focus on the singularity problem facing cope with mechanical equipment. Such as high temperature, high speed, high pressure and anti-wear, etc. Later, due to the requirement of the machinery maker and under the influence of market competition, the production of the grease, wax tend to multifunctional direction. General of oil products, however, there is always a limit on its use, not able to effectively cooperate to the requirements of modern production equipment at a high speed. While selecting the proper lubricant is not easy, but the market also have some professional lubricants supplier, can provide professional data and long-term after-sales service, thus to reduce the error in customers in the use, avoid the waste of valuable time and money. You might as well listen to the personage inside course of study, believe that will help to protect the printer performance.
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